英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

XPL    
A small dialect of {PL/I} used for compiler writing from
Stanford, 1967-69. XPL has
one-dimensional {arrays}. I/O is achieved with character
pseudo-variable INPUT and OUTPUT, e.g.

OUTPUT = 'This is a line';

It has inline {machine code}. "Programmers are given all the
rope they ask for. Novices tend to hang themselves fairly
frequently." XPL has been implemented on {IBM 360}, {Univac
1100}, {ICL System 4}, {CDC 6000} and {Cyber} series, {XDS
Sigma-5} and {Sigma-7} and {DEC} {PDP-10}.

An optimising XPL compiler (version 1) by Robin Vowels
is a standard implementation of XPL
and is based on McKeeman, Horning, and Wortman's improved
{XCOM} (which employs hashed symbol table generation). It
includes the extra built-in function COREHALFWORD.

The following areas have been optimised: procedures calls when
the argument and corresponding parameter are of the same type,
and when the argument is a constant; constant subscripts; use
of CORELHALFWORD and COREWORD; string constants of length one;
iterative DO statements by transferring code to the end of the
loop.

String constants of length one do not require a descriptor,
hence more descriptors are available for string variables.
Comparison operations are treated as commutative, and an
improved Commute algorithm is used. Halfword instructions are
generated for BIT(16) variables.

These areas have been improved or re-written: calls on OUTPUT,
catenation, integer-to-string conversion, multiply, divide,
and MOD. An emitter for SS-type instructions has been added.
The compiler achieves an 11% reduction in object code
compiling itself, an 11% increase in compilation rate, a 55%
increase in compilation speed when the $E toggle is set.
Special treatment for catenating a string to an integer
substantially decreases consumption of the free string area,
and decreases string moves. The latter improvement is most
noticeable on small core machines.

Core requirements: less than the improved XCOM on which it is
based (approx. 98000 bytes). Symbol table size is 468.
Ported to {IBM} {System 370}. The compiler is written in XPL.
The code generators are machine-specific.

["A Compiler Generator," W.M. McKeeman et al, P-H 1970].

[JCC, AFIPS 1968].

(1993-08-07)


请选择你想看的字典辞典:
单词字典翻译
XPL查看 XPL 在百度字典中的解释百度英翻中〔查看〕
XPL查看 XPL 在Google字典中的解释Google英翻中〔查看〕
XPL查看 XPL 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • For those who had the 15-min search cooldown on points but dont . . .
    You're absolutely right I didn't mind using Bing to search when there was no cooldown They can know about me in exchange for store credit gift cards Google already does and I don't get any points from them for it But with the cooldown, it's extremely inconvenient to use them to search now
  • Why is Microsofts R D expenditure so high? What future . . . - 知乎
    The following is an article from three years ago, for reference Original source: There Is One Apple, But Many Microsofts: The Company You Don’t Know English translation: Connect Magazine: One-Faced Apple, Multi-Faced Microsoft The question raised by the OP is Amazon:Amazon's goal is to establish a logistics network for same-day delivery, along with an internet streaming center; Alibaba:The goal is to become the world's largest network trading center; ibm There is also, IBM's core is
  • Daily Check-In — Whats the most you got on Day 7? - Reddit
    When I open the Bing App (on Android - US) and go to the Rewards page, there's that Daily Check in section at the top I think it was 5pts the first two days, then 10pts the next two, then 20pts for days five and six, and finally the big seventh day which has been 50pts and 60pts for me so far
  • Interesting quote of the day from Bing : r bing - Reddit
    A subreddit for news, tips, and discussions about Microsoft Bing Please only submit content that is helpful for others to better use and understand Bing services
  • Search Box no longer displaying a daily image : r WindowsHelp
    I like Windows 11's Search Box and its image on the right side, but since I ran PC Manager, this little feature seems to be broken and now only a Bing's "B" is displayed It has been like this for 2 days I attempted only restarting Windows Explorer process, but it didn't bring the daily image back
  • Quote of the day? : r MicrosoftRewards - Reddit
    This is Bing's Quote of the Day on Feb 15: A house divided against itself cannot stand Abraham Lincoln 16th president of the United States Pretty sure someone else said it first, Bing
  • quotes_of_today - Reddit
    Unlock the power of words at Quotes of Today Dive into our vast collection of inspirational, motivational, and reflective quotes for all of life's moments
  • I’ve been collecting the Bing Word of the Day for an entire . . . - Reddit
    On the day that I posted this, 5-28-2023, it would have been an entire year since I started collecting the daily word that Bing offers every day For those of you don’t know, if you search for “Word of the day” on Bing, you will find a unique vocabulary word that is specific to each day That’s what I’ve been documenting for the past
  • 10 11 23 : r BingQuoteOfTheDay - Reddit
    The Real Housewives of AtlantaThe BachelorSister Wives90 Day FianceWife SwapThe Amazing Race AustraliaMarried at First SightThe Real Housewives of DallasMy 600-lb LifeLast Week Tonight with John Oliver





中文字典-英文字典  2005-2009